Not only is the Jealous singer on the top of the music charts, but the 23-year-old stud's acting career is also at an all-time high.

In his new flick Goat — which is getting a lot of buzz since its premiere on Friday at the Sundance Film Festival — Jonas plays a college student who struggles with the morality of his frat's pledging process as he watches his younger brother being hazed.

"An element of the film is this idea of how difficult it can be to trust your gut and do what's right when everybody else around you is doing something that you don't believe. It's a risky film, and it's just exciting that it's creating a dialogue and provoking a response from people."

"There are a lot of things that influence the way you see the world as you approach your manhood. I would say that, at the core, that feeling of being accepted is there and those insecurities being put to rest is what keeps it healthy. I think some of the other roles I've taken the last two years have kind of informed [my idea of manhood] as well. This movie in a different way really touches on masculinity and what it means and what standards we're held to and by who. It's kind of nice to take a sledge hammer to that."

And apparently the former JoBro had already been prepping for this movie and his MMA fighter role in the television series Kingdom in his personal life. He explained to Daily Beast:

"I think that growth is super important in any creative platform and in life in general, and in the TV show I'm doing a lot of drugs and I'm having a lot of sex, so it wasn't foreign to me. And I've had sex and drank a lot [in real life], so there are parts of this film that are perfectly real in some sense. But it's important to take your fans on a journey. And it's the responsibility of any artist to say, ‘This is what I'm connected to, this is what inspires me, and hopefully you can ask the same questions I've asked of myself.'"

Ohhh, have you now, Nick?

Let us know if you need help with any of that research! Ha!

Nicky also touched on his stronger-than-ever relationship with his family — especially his brother and DNCE front man Joe — since going solo:

"Our journey has been from working together, to not, and trying to redefine the dynamic as a family first. Now we're closer than we've ever been, so it's a good thing. We're able to just be brothers. There's a real support there."

He added in a separate interview:

"I would say I'm very close with my brothers now, especially my brother Joe. Actually, that relationship was a big part of the relationship that I had in the back of my head [while filming Goat]. After the film was done, I had a lot of perspective to bring to that relationship that I didn't have before."

In July, father John McCain was diagnosed with stage 4 glioblastoma, an aggressive form of brain cancer, which also claimed Beau's life.

When the 33-year-old began crying, the politician went over and consoled her, adding:

"There is hope... And if anybody can make it, your dad [can]."

Biden is also optimistic about "breakthroughs that are occurring now," regarding potential treatment options and cures.

"There's a lot of things happening. Any of you who have somebody who is diagnosed with gliobastoma, which is about as bad as it gets, there's breakthroughs that are occurring now... And it can happen tomorrow."